Correctly deal with the situation of xccdf_item having no platforms
Correctly deal with the situation of xccdf_item having no platforms

isimluk/openscap,ybznek/openscap,redhatrises/openscap,Hexadorsimal/openscap,OpenSCAP/openscap,OpenSCAP/openscap,OpenSCAP/openscap,jan-cerny/openscap,mpreisler/openscap,isimluk/openscap,postfix/openscap,postfix/openscap,postfix/openscap,ybznek/openscap,OpenSCAP/openscap,mpreisler/openscap,postfix/openscap,redhatrises/openscap,jan-cerny/openscap,jan-cerny/openscap,jan-cerny/openscap,openprivacy/openscap,Hexadorsimal/openscap,postfix/openscap,OpenSCAP/openscap,jan-cerny/openscap,openprivacy/openscap,redhatrises/openscap,redhatrises/openscap,Hexadorsimal/openscap,ybznek/openscap,Hexadorsimal/openscap,redhatrises/openscap,jan-cerny/openscap,openprivacy/openscap,ybznek/openscap,openprivacy/openscap,openprivacy/openscap,mpreisler/openscap,Hexadorsimal/openscap,isimluk/openscap,mpreisler/openscap,ybznek/openscap,OpenSCAP/openscap,redhatrises/openscap,isimluk/openscap,ybznek/openscap,isimluk/openscap,openprivacy/openscap,Hexadorsimal/openscap,postfix/openscap,mpreisler/openscap,isimluk/openscap,mpreisler/openscap